75427166513 has 4 divisors (see below), whose sum is σ = 75434771568. Its totient is φ = 75419561460.

The previous prime is 75427166471. The next prime is 75427166531. The reversal of 75427166513 is 31566172457.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31566172457 = 61 ⋅517478237.

It is a cyclic number.

It is not a de Polignac number, because 75427166513 - 2⁶ = 75427166449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75427160513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3787631 + ... + 3807492.

It is an arithmetic number, because the mean of its divisors is an integer number (18858692892).

Almost surely, 2^75427166513 is an apocalyptic number.

It is an amenable number.

75427166513 is a deficient number, since it is larger than the sum of its proper divisors (7605055).

75427166513 is an equidigital number, since it uses as much as digits as its factorization.

75427166513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7605054.

The product of its digits is 1058400, while the sum is 47.

The spelling of 75427166513 in words is "seventy-five billion, four hundred twenty-seven million, one hundred sixty-six thousand, five hundred thirteen".